Statistics Exam 3 – Study
Guide, Review, Practice
Questions & Answers
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
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, Two researchers (A and B) compute a one-sample t Researcher A
test. For both tests, the mean difference between the
sample and value stated in the null hypothesis is 5,
but the standard error is smaller for Researcher A.
Which test is more likely to result in a decision to
reject the null hypothesis?
A researcher reports a significant effect in some Eta-squared
population. If he computes both an eta-squared and
an omega-squared effect size estimate, then which
estimate will be the largest?
A key difference between a t statistic and a z statistic Estimated
is that the standard error is _______ to compute a t
statistic
The estimated standard error in the t statistic uses Sample variance; population variance
the ________ to estimate the ________ when the
population variance is unknown.
Two researchers (A and B) compute a one-sample t Researcher B
test. For both tests, the standard error is the same,
but the mean difference between the sample and
value stated in the null hypothesis is smaller for
Researcher A. Which test is more likely to result in a
decision to reject the null hypothesis?
A researcher selects a sample of 16 women and asks Women found this trait to be important, and this result was significant,
them to rate how important a sense of humor is in t(15)=8.00, p<.05
someone they want a long-term relationship with.
She records scores averaging 1.6±0.8 (M±D) on a
rating scale from -3 (not important at all) to +3 (very
important). Assuming that an average score of 0 is
the null hypothesis, test whether or not women find
this trait important at a .05 level of significance.
A researcher selects a sample of 32 participants who 31
are assigned to participate in a study with one group.
What are the degrees of freedom for this test?
Which of the following explains why point estimation Both B and C
can be a useful procedure to estimate a population
mean?
-It defines the range of scores within which the
population mean is likely to be contained
-The sample mean is equal to the population mean
on average
-The sample mean is an unbiased estimator of the
population mean
-Both B and C
Guide, Review, Practice
Questions & Answers
Updated Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Two researchers (A and B) compute a one-sample t Researcher A
test. For both tests, the mean difference between the
sample and value stated in the null hypothesis is 5,
but the standard error is smaller for Researcher A.
Which test is more likely to result in a decision to
reject the null hypothesis?
A researcher reports a significant effect in some Eta-squared
population. If he computes both an eta-squared and
an omega-squared effect size estimate, then which
estimate will be the largest?
A key difference between a t statistic and a z statistic Estimated
is that the standard error is _______ to compute a t
statistic
The estimated standard error in the t statistic uses Sample variance; population variance
the ________ to estimate the ________ when the
population variance is unknown.
Two researchers (A and B) compute a one-sample t Researcher B
test. For both tests, the standard error is the same,
but the mean difference between the sample and
value stated in the null hypothesis is smaller for
Researcher A. Which test is more likely to result in a
decision to reject the null hypothesis?
A researcher selects a sample of 16 women and asks Women found this trait to be important, and this result was significant,
them to rate how important a sense of humor is in t(15)=8.00, p<.05
someone they want a long-term relationship with.
She records scores averaging 1.6±0.8 (M±D) on a
rating scale from -3 (not important at all) to +3 (very
important). Assuming that an average score of 0 is
the null hypothesis, test whether or not women find
this trait important at a .05 level of significance.
A researcher selects a sample of 32 participants who 31
are assigned to participate in a study with one group.
What are the degrees of freedom for this test?
Which of the following explains why point estimation Both B and C
can be a useful procedure to estimate a population
mean?
-It defines the range of scores within which the
population mean is likely to be contained
-The sample mean is equal to the population mean
on average
-The sample mean is an unbiased estimator of the
population mean
-Both B and C
